Improvement in chimney-caps



A. L. SWEET.

Chimney Cap. No. 41,649. Patented Feb. 16. 1864.

UNITED STATES PATENT OFFICE.

ALONZO L. SWEET, OF NORWICH, CONNECTICUT.

IMPROVEMENT IN CHIMNEY-CAPS.

Specification forming part of Letters Patent No. 41,649, dated February 16, 1864.

T0 aZZ whom it may concern.-

Be it known that I, ALONZO L. SWEET, of Norwich, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Chimney-Caps; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a vertical section of my invention applied to a chimney, w m, Fig. 2 indicating the line of section; Fig. 2, a plan or top view of the same.

Similar letters of reference indicate correspondin g parts in the two figures.

This invention consists in having the chimney-cap constructed of baked clay, glazed, so

as to present a hard surface impervious to air.

and moisture.

The invention also consists in a novel construction and arrangement of the cap, where by the upper part or pot is separate from the base or lower part, and both rendered capable of being secured firmly in contact on the chimney, and either or both being used as desired. The ordinary stone chimney-caps are quite expensive, and are not provided with what is technically termed the pot, to prevent the chimney from smoking, the pots, when used, being constructed of brick, which soon become detached by the action of the weather and require to be repaired at short intervals.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents a chimney, which may be con' structed, in the ordinary way, of brick, and B represents the base of the cap, which is constructed of clay molded in proper form, and then baked and glazed in the same way as the ordinary glazed pottery-ware. This base B is of quadrilateral or other form, corresponding to the form of the chimney, and it is molded so as to have a shoulder, a, within it, extending all around its sides, to rest on a shoulder, b, on the exterior of the chimney, as shown clearly in Fig. 1. The upper edge of the base B has a horizontal flange, c, which projects over the top brick of the chimneyatrifle above them.

C represents the pot or upper part of the cap, which is also of quadrilateral or other form corresponding with the chimney and base B. This pot has inclined sides, the upper ends being nearer together than the lower ends, and the lower end of the pot is provided with a horizontal flange, d, which rests on the top bricks of the chimney, and is underneath the flange a of the base B.

The pot is constructed of clay, molded in the form specified, baked and glazed like the base B, and it is first placed on the chimney and secured therein with any proper cement, and the base B is then placed on the chimney over the pot, and also secured in position by cement. The base B protects the top of the chimney While the pot O prevents the chimney from smoking, as its inclined sides, when the wind impinges against them, deflects the wind upward and causes an increased draft in the chimney.

The whole device may be constructed at a small cost, far cheaper than stone, and presents a good appearance, whileitis extremely durable, not liable, in consequence of being non-absorbent, of being affected by frost or worn by the action of the weather.

Having thus described my invention, what, I claim as new, and desire to secure by Letters Patent, is-

A chimney-cap composed of a base, B, and pot G, constructed of clay, molded in the desired form and baked and glazed, substantially as herein set forth.

ALONZO L. SWEET. Witnesses:

- SIDNEY REILEY, DAVID YOUNG. 

